Graphic from a graphic in image format?

Question

I hope you can help me. I have the following problem: I have a graph (x-axis, y-axis) in image format and I can not build it again, I would like to know if it is possible that from that image I can give them the values, I mean, I would like to know if there is any program to coordinate a graph previously made and that is in image format.

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An example, if I have this image:

f(x) exemple

what I want to know is if there's any program that gives you the values that are coordinated on that image.

Thanks!

Answer 1

this is virtually impossible, the information got lost when the export to an image was done. if you still know a little bit about the graph you can try to make a fit. here is a free online tool that can do this